Warm autumn colors are gracing the Sierra Nevada right now. Northern Nevadans can walk among the red, yellow and orange leaves for a limited time before the mountains trade their fall foliage for ...

The mixture of red, purple, orange and yellow is the result of chemical processes that take place in the tree as the seasons change from summer to winter. During the spring and summer the leaves have ...

The USPS often releases new designs for stamps, such as the fishing-themed images on last week's new set of Forever Stamps, or stamps that commemorate public holidays, or the advent of a new year.